Improvement in wagon-jacks



A. BRATSCHI. WAGON-JACKS'.

. 194 574 Patented Aug. 28,1877.

mvnmron- ATTORNEYS;

' N.FETERS, FHOTU-UTNOGRAPHH. WASHINGTON, Dv

UNITED STATES PATENT OFFICE.

AMIEL BRATSOHI, OF PORTERSVILLE, PENNSYLVANIA.

IMPROVEMENT IN WAGON-JACKS- Specification forming part of Letters PatentNo. 194,574, dated August 28, 1877; application filed June 25, 1877.

resents a side elevation, with parts out off, of

my improved wagon-jack; and Fig. 2 is a horizontal section of the sameon. line a: m, Fig. 1.

Similar letters of reference indicate corresponding parts.

The object of this invention is to furnish a wagon-jack that is adaptedto raise wagonaxles and other objects to any height, and rigidly supportthe same for oiling and other purposes.

The invention consists of a rigid vertical guide-post, secured to asuitable base, and of a sliding post, with central groove and crosspins,raised by a hand-leverwith hook-shaped end. The hand-lever is fulcrumedto a swinging rod, and made to engage one of the cross pins of thesliding post and lock the latter, in connection with the swingingbrace-rod, into raised position.

In the drawing, A represents an upright post that is rigidly secured toa base-piece, A and braced by an inclined rod, A. Along the upright postA is guided a vertically sliding post, B, that is retained by metalguide-bands a, fastened, respectively, to the lower end of post B, andto the upper end of the main post A. The sliding post B has a centrallongitudinal slot or recess, b, and a number of cross-pins, d, which areengaged by the hookshaped end 6 of a hand-lever, O, that is fulcrumed tothe upper end of a rod, D, which is pivoted at the lower end into asocket of the base-piece A The sliding post B is first raised along themain post up to the height of the axle or other object to be lifted, andthen the hook of the hand-lever inserted, to take hold of one of thecross'pins according to the distance to which the axle is to be raised.When the sliding post is raised by the lowering of the hand-lever tosuch height that the swinging rod D bears against the same, the part ofhandlever D between the fulcrum and pin is thrown below the straightline connecting the pivot of rod D and the pin, engaged by thehandlever, so as to act as a brace to the hand-lever, and lock therebythe sliding post rigidly in raised position for supporting thewagon-axle or other object. By raising the hand-lever, the sliding postis lowered, and the hook of the hand-lever disengaged from the pin.

The locking of the sliding post to any required height by the jointaction of the handlever and pivot-rod forms the essential feature ofthis jack. and furnishes a simple and effective implement for theraising of axles and similar purposes.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- The combination, in a lifting-jack, of a slidingpost, B, having cross-pins din a slot thereof, and a lever, (3, havingan inverted hook at the end, the former connected with rigid base A byswinging rod D, and the latter by fixed guide-post A, as shown anddescribed.

AMIEL BRATSOHI.

Witnesses WM. WILLIAMS, FREDERICK BURRY.

